(4 syl.). A philosopher who so admired Plato's Phaedon that he jumped into the sea in order to exchange this life for a better. He was called Ambraciota (of Ambracia), from the place of his birth in Epirus.
He who to enjoy Plato's elysium, leaped into the sea, Cleombrotus.
Milton: Paradise Lost, iii. 471-3.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894